September weather forecastBoxholm, IA
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Boxholm, Iowa, with an average temperature varying between 55.9°F (13.3°C) and 74.8°F (23.8°C).Temperature
With the arrival of September, Boxholm experiences a modest decline in average high-temperatures, transitioning from a warm 80.2°F (26.8°C) in August to a still moderately hot 74.8°F (23.8°C). Throughout the September nights, Boxholm encounters a low-temperature of 55.9°F (13.3°C).Humidity
The average relative humidity in September is 75%.Rainfall
In Boxholm, in September, it is raining for 11.6 days, with typically 3.03" (77mm) of accumulated precipitation. In Boxholm, during the entire year, the rain falls for 126.1 days and collects up to 26.85" (682mm) of precipitation.Snowfall
June through September are months without snowfall in Boxholm.Daylight
In Boxholm, the average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 6:42 am and sunset at 7:49 pm. On the last day of September, sunrise is at 7:13 am and sunset at 6:59 pm CDT.
Sunshine
In September, the average sunshine is 9.2h.UV index
In Boxholm, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: The maximum UV index, 4 during September, leads to the following recommendations:
Act with care - The need to guard against sun damage is communicated. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Boxholm, IA
- Average high temperature in September: 74.8°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (26.8°F).
- Average low temperature in September: 55.9°F
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).
Average pressure in September
Boxholm, IA
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Boxholm, IA
- Average wind speed in September: 8.2mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is July (7mph).
Average humidity in September
Boxholm, IA
- Average humidity in September: 75%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (69%).
Average rainfall in September
Boxholm, IA
- Average rainfall in September: 3.03"
The wettest month (with the highest rainfall) is May (4.06").
The driest month (with the least rainfall) is January (0.91").
Average rainfall days in September
Boxholm, IA
- Average rainfall days in September: 11.6 days
The month with the highest number of rainy days is June (16.7 days).
The month with the least rainy days is February (3.3 days).
Average snowfall in September
Boxholm, IA
- Average snowfall in September: 0"
The month with the highest snowfall is January (4.29").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Boxholm, IA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (10.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Boxholm, IA
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 9h and 12min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in September
Boxholm, IA
- Average sunshine days in September: 16.5 days
The month with the most sunshine days is October (19 days).
The month with the least sunshine days is June (11.8 days).
Average UV index in September
Boxholm, IA
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in September
Boxholm, IA
- Average cloud cover in September: 31
The month with the most cloud cover is January (Cloud cover 57).
The months with the least cloud cover are July and September (Cloud cover 31).
Average visibility in September
Boxholm, IA
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).
